Winding machine for making large soft cops



. 5, 1939. E. sTxAssNl WINDNG MACHINE FOR MAKING LARGE SOFT COPS Filed Aug. 2o, 193s- Pafentedpec. s, 1939 l UNITED STATES PATENT OFFICE WINDING MACHINE FR MAKING LARGE Application August Z0,

1938, .Serial No. 225,916

In Czechoslovakia May 24, 1938 7 Claims.

In the winding machine for making large soft cops as heretofore known, a great number of spindles, arranged in series are driven by one shaft.

In the drawing, Figure 1 shows such known arrangement. I is the frame of such known machine. In the support 2 of the frame is xed a sleeve 3, on which is loosely mounted a cog wheel 4, which is rotated. In the sleeve 3 is fastened a hollow shaft 6 adapted to be turned and displaced longitudinally, and to the bottom of which is xed the coupling member 1. 'I'his coupling member and, consequently, the hollow'shaft 6 are rotated when the driven cog wheel 4 engages the coupling member 1. This is effected by fastening to this coupling member 'I the lower end of a spiral spring 8, the upper end of which is odset so as to project, and to the cog wheel 4 is also secured a iinger 5, which will drive the upper end of the spring when the hollow shaft 6 together with the coupling member 'I and the spiral spring 8 slightly move upwardly. This up?y ward movement is eiected due to the fact that the upper end of the hollow shaft 6 merges into a driving head 9 and that adjacent to the bottom face of said head is arranged an eccentric segment I adapted to rotate about a xed axle At one side of said segment I0 is fastened a lever II through the extremity of which a thread 48 is threaded and .on the other side of I 0 is arranged a lever 49 provided with counter-weights I2. If now the guide-thread is slightly lifted, the eccentricity of the said segment I0 will cause the driving head 9 to be lifted, whereby the cog wheel 4 will engage the hollow shaft 6, so that the latter will be rotated. Tearing or slackening of the thread, the tension of which will balance the excess of weight of the left part of the double lever II, I0, 49, will eiect disengagement.

On the support I3 and xed to the frame of the machine I is mounted a funnel I4. The spina. dle of the large soft cop (not shown in the draw? 45 ing) .projects through the hollow shaft 6 and engages therewith within the driving head 9. The upper end of the cop spindle is centered by a pivot I serving as a bearing. The said pivot is fixed within an arm IB secured to a rod II, which is adapted to be displaced in the direction of the axle and is rotatably located at I8 and I9. Lest the arm I6 strike the funnel, a spiral spring 50 is provided to act as shock absorber. The threadguide 20 is driven from an eccentric body 2 I The cop is formed in a, known way on the bobbin spindle by means of the funnel I4, the rod I1 being lifted as the length of the cop increases.

Now, this known arrangement involves the disadvantage that the eccentric segment I0 as well as the bottom face of the driving head 9 resting 5 thereon, will soon wear out, whereupon the stopmotion will refuse to work and the coupling member 'I will have to be readjusted. After some time, such wear will have increased so much that the parts must be renewed. A further disadvantage 10 is that the centering of the funnel and spindle is imperfect and therefore must be readjusted from time to time. Assemblage of the respective parts or readjustment thereof will require the activity of a skilled operator. i

According to the invention, the said disadvantages are removed by that each spindle is driven by an electro-motor .of its own, through the hollow shaft of which projects the spindle. Thereby it is rendered possible to mount the funnel upon the casing of the motor and center it there in a reliable and lasting manner. On its top, .themotor may be provided with alabyrinth-packing which will prevent its becoming dirty through penetrating nbre. Such labyrinth-packing as well as -the driving head may be surrounded by a shoulder of thefunnel, which shoulder will simultaneously serve for centering the funnel on the motor casing. The choice of an individual electric drive will allow to switch the motor on and oi in a simple and sensitizing manner, for example, by means of a mercury switch, whereby the rapid wear occurring in the former embodiment of the coupling means, the finger 5 and upper end of spring 8 will not take place. Such 35 device will work quietly, and in a reliable manner, so that the objectionable noise of the machine is reduced to a minimum.

In the drawing (Figure 2) an embodiment of a winding machine for making large soft cops ac- 4,0 cording to the invention is shown by way of example. 22 is the electro-motor adapted to be driven at a low voltage and the hollow shaft of which is shown at 23. Through the hollow shaft passes the spindle 21 (broken oi in the drawing). 45 At 24 is shown a driving head connecting the hol-' low shaft to the spindle. Centerig of the funnel 25 within the motor casing is ensured by means of the shoulder .46 secured thereto. A labyrinthpacking will prevent the motor from becoming 50 dusty. Such packing as well as a driving head 24 are inserted in the shoulder 46. The upper end of the angular spindle is xed within'al tie-piece 5I located within the pivot 26 secured within the arm 28. This arm is pivoted within the cylindric part 29 of a guide-rod 30, the remaining part of which isangular, and rod 30 is guided in its turn at 38, 39. The left end of arm 28 is forked at 3|, that is, provided with a slot. To the guiding rod 30 below the arm 28 is fastened an arm 32, the end 33 of which is forked in the same way as end 3|. Through the two superposed slots of arms 28 and 32 projects a cylindric bolt 31 secured to the 'end of a double arm 35 linked at 34 to the arm 28. A spring 36 secured to the arm 28 forces the right hand end of the double arm 35 upwardly. If the bearing block 26 is to be lifted from a tiev piece 5|, in order to disengage the spindle, the right hand end of the double arm 35 is forced downwardly against the yaction of spring 38, whereby the bolt 31 will release the slotted ends of arms 28 and 32. The pivot being lifted, arm 28 will now allow to be pivoted around its fulcrum pin. Due to this arrangement and in contradistinction to former embodiments which allowed pivoting of the spindle about the axle of the rodl'l, the spindle is securely guided and the length of the cop is thus unlimited.

rIjhe thread-guide mechanism is actuated by a helical gear 43 mounted on the hollow motor shaft 23, which gear engages a wheel 42. By the shaft @44 of wheel 42 the guide thread mechanism 4l is driven'in any suitable Way (not shown) for example, by a crank, eccentric or the like. At 40 is shown a contact or feeler lever influenced by a thread, which lever in the case of breakage or slackening of the thread operates a mercury switch (known per-se) located in a casing 52,

What I claim is:

1. In a winding machine for making large soft cops, an electro-motor, a casing therefor,V`

a hollow drive shaft in vsaid motor, a spindle extending through said shaft and driven thereby, anda funnel Within which the cop is formed, said funnel being Amounted coaxial with said spindle on the casing of said motor.

2. In a winding machine for making large soft cops, 'an electro-motor, a casing therefor, a hollow drive shaft in said motor, a spindle extending through said shaft and driven thereby, a funnel within which the cop is formed, said funnel 'being mounted coaxial with said spindle on the casing of said motor, and a labyrinth packing `around the shaft of the electro-motorrto keep,.-

the motorA free of fibre.

3. In a winding machine for making large soft cops, an electro-motor, a casing therefor, a hollow drive shaft in said motor, ,a spindle extending through said shaft and driven thereby, a funnel within which the cop is formed, said funnel being mounted coaxial with said spindle on the casing of said motor, ajournal for the upper support of said spindle, a horizontally pivoted arm for receiving said-journal; and releasable means for locking said arm in a predetermined position whereby said journal is coaxial With said spindle.

4. In a Winding machine for making large soft cops, an electro-motor, a casing therefor, a vertical hollow drive shaft in said motor, a spindle on the casing of said motor, a journal for the.

upper support of'. said spindle, a horizontally pivoted arm for `receiving said journal, means for mounting said arm whereby the same is vertically movable, andl releasable means for locking said arm in a predetermined position whereby said' journal is coaxial with said spindle.

6. In a Winding machine for making large soft cops, an electro-motor, a casing therefor, a vertical hollow drive shaft in said motor, a spindle extending through said shaftand driven thereby, a funnel within which the cop is. formed, said funnel being mounted coaxial with said spindle on the casing of said motor, a journal for the upper support of said spindle, a horizontally pivoted arm forreceiving said journal, means for mountingsaid arm whereby the same is vertically movable, releasable means for locking said arm in a predetermined position whereby said journal is coaxial with said spindle, said releasable means comprising a lever pivoted'on said arm, a notched portion on the mounting means for said arm, said notched portion being vertically but not pivotally movable, and a latch member on said lever adapted to engage said notched portion and said arm to hold the arm in position.

Y 7. In a winding machine for making large soft cops, an electro-motor, a casing therefor, a hollow drive shaft in said'motor, a spindle extending through said shaft' and driven thereby, and a funnel within which the copv is formed, said funnel being mounted coaxialy with said spindle on the casing-of said motor, a switch for controlling power to said electro-motor, and threadguide means connected to said switch wherebyv the switch is responsive to thread tension on said machine.

` Y ERNST STIASSNI. 

